Onkyo TX 844 Service Manual
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Extracted text from Onkyo TX 844 Service Manual (Ocr-read)
Page 1
ONKYO SERVICE MANUAL
Ref. No. 0M3366
QUARTZ SYNTHESIZED
TUNER AMPLIFIER
MODEL TX-844
Ellack model
BHUD. BHUDN. BHUDC
12(lV AC fiOHZ
BHUG
220V AC. SOHZ
BHUW
lZO/ZZUV AC. 50/60HZ
BHUOA BHUQB
240V AC SUHZ
SAFETYRELATED COMPONENT WARNINGII
COMPONENTS INDENTIFIED BY MARK AON
THE SCHEMA'I'IC DIAGRAM AND IN THE
PARTS LIST ARE CRITICAL FOR RISK OF FIRF
AND ELECTRIC SHOCK. REPLACIi 'IIILSl.
COMPONENTS WITH ONKYO PARTS WHOSE
PARTS NUMBERS APPEAR AS SHOWN IN THIS
MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT
EXPOSED PARTS ARE ACCEPTABLY
INSULATED FROM THE SUPPLY CIRCUIT
BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER.
ONKYO®
AIIIIIII BflMPflIIIIIIS
TABLE OF CONTENTS
Specifications ..............................................
Service procedures
Exploded vicw
Parts list ........
Block diagram - 120V model 7
Block diagram 7 Other models 7 ........ 8
Connection diagram of microproc 10
Block diagrams of 1C 13
Adjustment procedures
PC board view/parts list
Display/Volume ......................
FM/AM tuner and selector Circuit .
Other pt hoards ,
Schematic diagram
IZOV model 7 Tuner section 7
7 Amplifier section
ZZUV model - Tuner section 7
7 Amplitier section
Packing View .............................
1
TX844.max
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